2001223442422 has 4 divisors (see below), whose sum is σ = 3001835163636. Its totient is φ = 1000611721210.

The previous prime is 2001223442377. The next prime is 2001223442443. The reversal of 2001223442422 is 2242443221002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500305860604 + ... + 500305860607.

It is an arithmetic number, because the mean of its divisors is an integer number (750458790909).

Almost surely, 2^{2001223442422} is an apocalyptic number.

2001223442422 is a deficient number, since it is larger than the sum of its proper divisors (1000611721214).

2001223442422 is a wasteful number, since it uses less digits than its factorization.

2001223442422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000611721213.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 2001223442422 its reverse (2242443221002), we get a palindrome (4243666663424).

The spelling of 2001223442422 in words is "two trillion, one billion, two hundred twenty-three million, four hundred forty-two thousand, four hundred twenty-two".